kek status report
DESCRIPTION
KEK Status Report. Kirk. STF/CFF Status. STF-2 Cryomodule (CM-1; 8 cavities & Q-magnet, CM-2a; 4 cavities) CM-1 assembly was already done CM-2a (half size) assembly is on going and will finish by end of May Cavity string assembly for MHI-23~-26 was done - PowerPoint PPT PresentationTRANSCRIPT
KEK Status Report
Kirk30/Apr/20141 LCC 4th SCRF Meeting
• STF-2 Cryomodule (CM-1; 8 cavities & Q-magnet, CM-2a; 4 cavities)‒ CM-1 assembly was already done
‒ CM-2a (half size) assembly is on going and will finish by end of May‒ Cavity string assembly for MHI-23~-26 was done
‒ First cool-down will start from Autumn
• 9-cell Cavity‒ First vertical test for KEK-01 will be done tomorrow (Saeki-san)
‒ MHI-D cavity will be fabricated/tested for check of technology improvement delayed
‒ MHI-27~-30 will be fabricated/tested after above check delayed
• Others (1-cell cavity and magnetic shield study)‒ Magnetic shield study is on going in vertical cryostat (Tsuchiya-san/Masuzawa-san)
‒ V.T. for large grain 1-cell cavity (In-house) was done twice (Umemori-san/Kubo-san)
‒ Yamanaka-san presented the plan for cavity fabrication in F.Y. 2014.
STF/CFF Status
30/Apr/20142 LCC 4th SCRF Meeting
CM1+CM-2a attachment check
30/Apr/20143 LCC 4th SCRF Meeting
CM-1+CM-2a in STF-2
CM-2a
CM-1Injector CM
Cavity string + Gas return pipe
30/Apr/20144 LCC 4th SCRF Meeting
Assembly of CM-2a
Cavity string Tuner setting
Gas return pipe
Magnetic Shield Study at STF
30/Apr/20145 LCC 4th SCRF Meeting
K. Tsuchiya/M. Masuzawa
30/Apr/20146 LCC 4th SCRF Meeting
Result of Magnetic Shielding
1. Vendor A : 2~2.8 mG @4K
2. Vendor B : 5~14 mG @4K
3. Double shield : ~2 mG @4K
※Geomagnetic field : 500~650 mG @R.T.※There is no difference between 4K and 2K.
K. Tsuchiya/M. Masuzawa
T=2.0 K
T=1.8 K
T=1.7 K
T=1.6 K
T<1.4 K
In-house production of large-grain 1-cell cavity
preliminary
T. Kubo30/Apr/2014 LCC 4th SCRF Meeting7
KEK-R1
30/Apr/20148 LCC 4th SCRF Meeting
Yamanaka-san’s plan for CFF
M. Yamanaka
Cavity name Cavity type Comment
KEK-0 9-cell Prototype, w/o HOM couplers
KEK-1 9-cell 1st V.T. will be done tomorrow
KEK-2 9-cell In plan, full cavity package, HPC
KEK-3 9-cell In plan, full cavity package, HPC
KEK-R1 1-cell (L.G.) V.T.s were done twice
KEK-R2 1-cell Almost same as KEK-R1, but F.G.
KEK-R3 3-cell Improvement for dumbbell fabrication
KEK-R4 1-cell Nb sheet by new vendor is used
KEK-R5 1-cell (L.G.) Low RRR (<200) sheet is used
KEK-W1 Seamless CBP was done at FNAL
KEK-W2 Seamless Under fabrication
KEK-U4 Seamless In plan
Thank you
30/Apr/20149 LCC 4th SCRF Meeting